Inside the World'd BIGGEST Building - The New Global Centre

THIS building is so massive It is three times the size of the Pentagon in Washington and could fit 20 Sydney Opera Houses inside it. Some features include a re-creation of a 'Mediterranean village', shopping ​The New Century Global Center building opens to the public in Chengdu.

centre plus a water park several hotels and a 14-screen movie theatre and ice-skating rink.This amazing building has now opened in Chengdu, Southwestern China

The huge building is the latest symbol of China's economic boom. Picture: AFP

In order to create enough light and heat it has an "artificial sun" 24 hours a day.The New Century Global Center is the largest freestanding building in the world, it has a floor space of 1.76 million square metres. It measures approximately 500m long, 400m wide and 100m high.

In pictures: Weird buildingsIt is built next to an artificial lake and features a massive water park inside the area, "This is an ocean city built by man," Chinese guide Liu Xun told AFP.

The water park in the New Century Global Centre building.

Workers cleaning the glass roof of the New Century Global Centre.

It took three years to complete the unique project.

New Century Global Centre is the world's largest stand-alone structure